The European elections in May 2014 were marked by the breakthrough of Eurosceptic parties and the decline of key players in the European integration process. This rise of anti-EU forces naturally takes place in the context of the economic crisis. In addition to national challenges and the punishment of existing executives, the rise of Eurosceptic parties has also demonstrated the growing Europeanisation of public debate, amid citizens’ distrust in the functioning of the European Union and its institutions. This crisis of confidence in the European project has given rise to a multi-faceted protest, which has fuelled the perception of a ‘wave of Eurosceptics’, but the real challenge to the European project comes from political formations that today embody a ‘hard’ variant of Euroscepticism, which is in principle opposed to the integration and abandonment of national sovereignty, and in some cases calls for the EU to leave the EU outright. The vast majority of these supporters are the protagonists of the radical populist right, a contemporary avatar of the old far-right pan-European. These parties made hostility to the European Union a battle horse and a central theme of their electoral platform, articulating a nationalist political offer in response to the challenges and challenges of denationalisation.